Date   
Re: Update to the VK2ETA variation of Ian Lee's KD8CEC uBitx software #ubitx

John (vk2eta)
 

Hello Skip,

Yes sorry, I didn't check the upload. 

I have uploaded the updated zip file in the new folder at https://groups.io/g/BITX20/files/Variations%20on%20KD8CEC%20Software%20%28by%20VK2ETA%29%20+%20ATU%20sketch/ATU%20schematics%20and%20pictures.zip

Here is a write up I did to describe the ATU: https://groups.io/g/BITX20/message/45165

I have also included here the two parts of the schematic. Part 1, the L-Network:

Control part:


Any question, ask. All the best,

73, John (VK2ETA)

Re: Coast to coast on my ubitx yesterday

Tim Gorman
 

Dave,

I would trust your meter more to tell you the swr than the actual
power.

If you have a dummy load you can hook up then this site:
http://www.ab4oj.com/test/pwrmeas.html
will give you good info on how to accurately measure your power using
your oscilloscope.

tim ab0wr


On Sat, 21 Apr 2018 10:50:28 -0700
davesters@... wrote:

Hi Tim
Yeah I do have a an oscope but the readings I gave you were from my
swr meter. Is my meter right?? It is a cheap cb meter. Still the
readings seem to close to what others have posted. Probably is my
location and atmospherics but was able to reach out and touch someone
as the old Bell ads once said. Yesterday I contacted someone in
Tucson and today it was Nantucket. 

My antenna is a homemade choked dipole resonant on 40 and 80. Hung
between trees overlooking a ravine. I use recycled RG6 from an old
residential television system. I have thought about upgrading it but
then I wonder what would be gained. 

I am running 13.8 on all circuits. I put details in my first post. 

I did not check the bias on the pa. But did go through the other
calibration steps. The bfo was not set very close. 

This is my main HF rig now and probably will be for some time. I have
thought about making the bitx40 a mobile unit.

Re: Coast to coast on my ubitx yesterday

Tim Gorman
 

Dave,

This is also a good site for how to measure output power.

http://dudleylab.com/Appnote-4-Power-tests1.pdf

tim ab0wr


On Sat, 21 Apr 2018 10:50:28 -0700
davesters@... wrote:

Hi Tim
Yeah I do have a an oscope but the readings I gave you were from my
swr meter. Is my meter right?? It is a cheap cb meter. Still the
readings seem to close to what others have posted. Probably is my
location and atmospherics but was able to reach out and touch someone
as the old Bell ads once said. Yesterday I contacted someone in
Tucson and today it was Nantucket. 

My antenna is a homemade choked dipole resonant on 40 and 80. Hung
between trees overlooking a ravine. I use recycled RG6 from an old
residential television system. I have thought about upgrading it but
then I wonder what would be gained. 

I am running 13.8 on all circuits. I put details in my first post. 

I did not check the bias on the pa. But did go through the other
calibration steps. The bfo was not set very close. 

This is my main HF rig now and probably will be for some time. I have
thought about making the bitx40 a mobile unit.

Re: receiver overload

John Sharpe
 

Thanks for all the ideas and interesting comments.

I think you are right Tim, the tuner is acting as a filter.

I don’t think I had the problem with a previous antenna - a standard 40m dipole fed with coax.
Maybe the window line to the ZS6BKW is picking up too much noise.

I’ll reinstall that dipole antenna and test again when I get time.

John VK2VOL

On 22 Apr 2018, at 7:13 am, Tim Gorman <tgorman2@...> wrote:

That's always a possibility.

Some tuners also can act as low-pass filters or even as a parallel tuned
circuit, i.e. a bandpass filter. If the dominating noise contribution
is from a frequency-limited source such as a man-made source both could
work to lower the noise in the receiver. But I don't think this happens
very often.

tim ab0wr

On Sat, 21 Apr 2018 14:10:29 -0400
"Joe Puma" <kd2nfc@...> wrote:

I heard that when you use an antenna tuner you actually raise the
noise floor. 🤷🏻‍♂️I understand why but never heard it getting rid of
noise. Maybe the tuner provided a better ground then what you had so
yea maybe it made it seem like it reduced noise if your antenna
system is inadequate.

Joe

KD8CEC 1.072 download

Rod Davis
 

Hi All,

Ron, W7HD, points out that downloading the KD8CEC 1.072 can be a problem

because version 1.072 does not appear in the list.


It is necessary to click on the Branch button, then use your mouse wheel to

scroll down until the version1.072 is revealed.


Best to All,

Rod KM6SN



See below for an excerpt:

Download the CECFW source code from github

https://github.com/phdlee/ubitx

For this example we will be using version 1.072.



Click the “Branch” button to select version 1.072, then click “Clone or download” and click “Download ZIP”. Unzip the downloaded file and make a note of the folder location, or move the unzipped directory into your arduino sketch folder.


Re: KD8CEC 1.072 download

Paul Schumacher
 

Rod,

Thanks so much for the manuals!

Paul K0ZYV


On Saturday, April 21, 2018, 3:25:48 PM PDT, Rod Davis <km6sn@...> wrote:


Hi All,

Ron, W7HD, points out that downloading the KD8CEC 1.072 can be a problem

because version 1.072 does not appear in the list.


It is necessary to click on the Branch button, then use your mouse wheel to

scroll down until the version1.072 is revealed.


Best to All,

Rod KM6SN



See below for an excerpt:

Download the CECFW source code from github

https://github.com/phdlee/ubitx

For this example we will be using version 1.072.



Click the “Branch” button to select version 1.072, then click “Clone or download” and click “Download ZIP”. Unzip the downloaded file and make a note of the folder location, or move the unzipped directory into your arduino sketch folder.


Re: KD8CEC 1.072 download

w7hd.rh <w7hd.rh@...>
 

AND it works every time now!   Thanks Rod.  I can proceed with further commentary, hi hi.

Ron W7HD


On 04/21/2018 03:25 PM, Rod Davis wrote:

Hi All,

Ron, W7HD, points out that downloading the KD8CEC 1.072 can be a problem

because version 1.072 does not appear in the list.


It is necessary to click on the Branch button, then use your mouse wheel to

scroll down until the version1.072 is revealed.


Best to All,

Rod KM6SN



See below for an excerpt:

Download the CECFW source code from github

https://github.com/phdlee/ubitx

For this example we will be using version 1.072.



Click the “Branch” button to select version 1.072, then click “Clone or download” and click “Download ZIP”. Unzip the downloaded file and make a note of the folder location, or move the unzipped directory into your arduino sketch folder.



-- 
Ron W7HD - NAQCC#7587 OMISS#9898 KX3#6966 LinuxUser#415320
Editor OVARC newsletter

Re: KD8CEC 1.072 download

K9HZ <bill@...>
 

The way Ian packages his IDC code is a bit problematic because when you unpack it… it over-writes his old code in the Arduino IDC.  Simply including the VERSION NUMBER in the file name/ directory would solve this issue.

 

 

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

 

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

 

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it: www.VillaGrandPiton.com

Like us on Facebook! facebook icon

 

Moderator – North American QRO Group at Groups.IO.

 

email:  bill@...

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of w7hd.rh
Sent: Saturday, April 21, 2018 6:45 PM
To: BITX20@groups.io
Subject: Re: [BITX20] KD8CEC 1.072 download

 

AND it works every time now!   Thanks Rod.  I can proceed with further commentary, hi hi.

Ron W7HD

 

On 04/21/2018 03:25 PM, Rod Davis wrote:

Hi All,

Ron, W7HD, points out that downloading the KD8CEC 1.072 can be a problem

because version 1.072 does not appear in the list.

 

It is necessary to click on the Branch button, then use your mouse wheel to

scroll down until the version1.072 is revealed.

 

Best to All,

Rod KM6SN

 

 

See below for an excerpt:

Download the CECFW source code from github

https://github.com/phdlee/ubitx

For this example we will be using version 1.072.

 

Click the “Branch” button to select version 1.072, then click “Clone or download” and click “Download ZIP”. Unzip the downloaded file and make a note of the folder location, or move the unzipped directory into your arduino sketch folder.

 



-- 
Ron W7HD - NAQCC#7587 OMISS#9898 KX3#6966 LinuxUser#415320
Editor OVARC newsletter


Virus-free. www.avg.com

Re: Hyderabox!

Skip Davis
 

Yes Ken it was a tongue in cheek comment. Although it is a good box for the uBITX and true there is a lot of room to add accessories inside. That handle is convenient for a grab and go rig too.
I’m still finishing up mods on mine before I install it into an unused Ten Tec enclosure I have that is similar to the Argonaut (505,509) only smaller. I have had it around for just such a project and the board just fits too.
I haven’t been to Dayton in a few years and miss it, maybe next year.

Skip Davis, NC9O

On Apr 21, 2018, at 13:50, Ken Hansen <ken@...> wrote:

I strongly detect sarcasm in your post Skip, but others like to complain about such things as 'travesties' and crimes against the ghosts of Benton Harbor, but as a 6m AM transceiver this device is nearly worthless if operating 'good as new', and if it was a 'basket case' in need of serious repair, all the more justification to put the chassis to good use IMHO.

If you go to Dayton/Xenia you'll see plenty of these 2m and 6m lunchboxes offered up for very modest prices, if I find one clean enough I'd get one and do it myself - it's a great case and includes lots of room for a battery pack!

Ken, N2VIP

On Apr 21, 2018, at 11:17 AM, Skip Davis via Groups.Io <skipnc9o=yahoo.com@groups.io> wrote:

Oh no another Benton Harbor lunchbox bit the dust only to be resurrected into a new and glorious life. Or is that a reincarnation as uBITX?

Skip Davis, NC9O


Wanted: your dead uBitx. #ubitx

Nick VK4PP
 

Hi Gents and YLs
Just checking if anyone has a dead uBitx they want to part with? I have a spare case and enjoy the process of troubleshooting and repairing...

73 Nick, VK4PLN

Re: Transmitter Mods

K9HZ <bill@...>
 

Yes, if you redesigned the PA of the uBITx to match the design criterion of the WA2EBY amp, you might get his results…

 

 

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

 

Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

 

Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

Rent it: www.VillaGrandPiton.com

Like us on Facebook! facebook icon

 

Moderator – North American QRO Group at Groups.IO.

 

email:  bill@...

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jerry Gaffke via Groups.Io
Sent: Friday, April 20, 2018 12:04 AM
To: BITX20@groups.io
Subject: Re: [BITX20] Transmitter Mods

 

Yup, we've been through this.
If you treat the IRF510's right, you get the results that WA2EBY does.


On Thu, Apr 19, 2018 at 09:30 pm, K9HZ wrote:

Even if you drive the crap out of those power supply/motor switch IRF510’s… without a lot of other mods they will still only put out 5 watts.  We’ve been through this…

 


Virus-free. www.avg.com

Re: Update to the VK2ETA variation of Ian Lee's KD8CEC uBitx software #ubitx

John (vk2eta)
 

Uploaded a new version at this location:

https://groups.io/g/BITX20/files/Variations%20on%20KD8CEC%20Software%20%28by%20VK2ETA%29%20+%20ATU%20sketch/uBitx-Raduino-KD8CEC%20based-VK2ETA-Variation%20-%20V20180422.zip

Continuously looking for program size reduction to have as many features as possible concurrently in the Nano's memory.

Inspired by Ian Lee's KD8CEC version 1.701, I included a modified version of his TinyLCD library.

Compared to the complete default LiquidCrystal library this cut down version saves 452 bytes of program flash memory.

I made it into an object oriented class so it can be easily retrofitted into other projects as there are only two lines of code to change.

All the best,

73, John (VK2ETA)

Re: show your mic

Tom, wb6b
 

Here is my minimalist microphone.

Surprisingly, the PTT button works through the heat shrink tubing. So, I did not cut an opening to expose it - the button is "weatherproofed".

Re: Upgrade the software to Allard's version #radiuno #bitx40help #nano

SaMa photo SaMa photo
 

perfect thanks

Sergio

Re: show your mic

MVS Sarma
 

Max,
 please check whether the mic body is connected to chasis ground.
i mean the positive bias voltage for mic should come on independent pin and NOT to the body pin of the eletret element.

In case you are using a dynamic mic, perhaps we need more gain and your need to shout appers logical.

regards
sarma
vu3zmv

Regards
MVS Sarma
 

On Sat, Apr 21, 2018 at 11:27 PM, MAX <max@...> wrote:

Speaking of mics, I have to raise my voice almost to the level of shouting to get 5 watts out on 40 meters.  Is this normal or should I look for a problem?

 

Regards.

 

Max K 4 O D S.

 

I've Never Lost the Wonder.

 

Antique Electronics Site: http://www.angelfire.com/electronic/funwithtubes/

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Mvs Sarma
Sent: Saturday, April 21, 2018 7:17 AM
To: BITX20@groups.io
Subject: Re: [BITX20] show your mic

 

I had grabed a taperecorder mic with 3.5mm mono pin.
 replaced the cable with 2+shield.had a small pushed switchmounted and wired.
 repalced the 3.5mm momo pin to stereo pin. Here is a image of my mic.The pp9 battery helps to imagine the mic size.
regards
 sarma
 vu3zmv


Re: Upgrade the software to Allard's version #radiuno #bitx40help #nano

Allard PE1NWL
 

You're welcome.
Please let me know the result.

73 Allard PE1NWL

Re: show your mic

Gordon Gibby
 

image1.jpeg

Three pieces of wood, and cheap momentary contact push button.


On Apr 22, 2018, at 04:43, Mvs Sarma <mvssarma@...> wrote:

Max,
 please check whether the mic body is connected to chasis ground.
i mean the positive bias voltage for mic should come on independent pin and NOT to the body pin of the eletret element.

In case you are using a dynamic mic, perhaps we need more gain and your need to shout appers logical.

regards
sarma
vu3zmv

Regards
MVS Sarma
 

On Sat, Apr 21, 2018 at 11:27 PM, MAX <max@...> wrote:

Speaking of mics, I have to raise my voice almost to the level of shouting to get 5 watts out on 40 meters.  Is this normal or should I look for a problem?

 

Regards.

 

Max K 4 O D S.

 

I've Never Lost the Wonder.

 

Antique Electronics Site: http://www.angelfire.com/electronic/funwithtubes/

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Mvs Sarma
Sent: Saturday, April 21, 2018 7:17 AM
To: BITX20@groups.io
Subject: Re: [BITX20] show your mic

 

I had grabed a taperecorder mic with 3.5mm mono pin.
 replaced the cable with 2+shield.had a small pushed switchmounted and wired.
 repalced the 3.5mm momo pin to stereo pin. Here is a image of my mic.The pp9 battery helps to imagine the mic size.
regards
 sarma
 vu3zmv


Re: show your mic

 

Max,

From board to board there will always be some variation of gain.

You can increasing the mic gain by reducing the resistor

BITX40 - R123
uBITX - R63

You could try the mic gain control I described recently.

You could also increase the drive

BITX40 - R136
uBITX - RV1

Raj


At 21/04/2018, you wrote:
Speaking of mics, I have to raise my voice almost to the level of shouting to get 5 watts out on 40 meters.  Is this normal or should I look for a problem?
 
Regards.
 
Max K 4 O D S.
 
I've Never Lost the Wonder.
 
Antique Electronics Site: http://www.angelfire.com/electronic/funwithtubes/

Re: show your mic

MVS Sarma
 

lovely design


Regards
MVS Sarma
 

On Sun, Apr 22, 2018 at 3:08 PM, Gordon Gibby <ggibby@...> wrote:
image1.jpeg

Three pieces of wood, and cheap momentary contact push button.


On Apr 22, 2018, at 04:43, Mvs Sarma <mvssarma@...> wrote:

Max,
 please check whether the mic body is connected to chasis ground.
i mean the positive bias voltage for mic should come on independent pin and NOT to the body pin of the eletret element.

In case you are using a dynamic mic, perhaps we need more gain and your need to shout appers logical.

regards
sarma
vu3zmv

Regards
MVS Sarma
 

On Sat, Apr 21, 2018 at 11:27 PM, MAX <max@...> wrote:

Speaking of mics, I have to raise my voice almost to the level of shouting to get 5 watts out on 40 meters.  Is this normal or should I look for a problem?

 

Regards.

 

Max K 4 O D S.

 

I've Never Lost the Wonder.

 

Antique Electronics Site: http://www.angelfire.com/electronic/funwithtubes/

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Mvs Sarma
Sent: Saturday, April 21, 2018 7:17 AM
To: BITX20@groups.io
Subject: Re: [BITX20] show your mic

 

I had grabed a taperecorder mic with 3.5mm mono pin.
 replaced the cable with 2+shield.had a small pushed switchmounted and wired.
 repalced the 3.5mm momo pin to stereo pin. Here is a image of my mic.The pp9 battery helps to imagine the mic size.
regards
 sarma
 vu3zmv



Re: Coast to coast on my ubitx yesterday

_Dave_ K0MBT
 

Hi Tim
I appreciate the links that you have directed at me.
Dave
k0mbt